Archives: Questions and Answers

Chromosome duplication during the cell cycle occurs in (A) G1 phase (B) G2 phase (C) M phase (D) S phase

The boiling points of Iodomethane, Dibromomethane, Bromomethane, Chloromethane follow the order (A) Bromomethane > Dibromomethane > Iodomethane > Chloromethane (B) Bromomethane > Iodomethane > Chloromethane > Dibromomethane (C) Dibromomethane > Iodomethane > Bromomethane > Chloromethane (D) Iodomethane > Bromomethane > Chloromethane > Dibromomethane

In chick embryo, the ectoderm generates (A) alveolar cells (B) germ cells (C) neurons (D) red blood cells

If a variable z shows a standard normal distribution, then the percent probability that 0≤z2≤1 is (rounded off to the nearest integer). (A) 34 (B) 68 (C) 95 (D) 99

An object is placed 15 cm in front of a convex mirror, which has a radius of curvature 30 cm. Which one of the following is true of the image formed? (A) Real and inverted (B) Real and upright (C) Virtual and inverted (D) Virtual and upright

Genes in two species that are derived from the same ancestral gene in their most recent common ancestor are called (A) analogs (B) heterologs (C) orthologs (D) paralogs

Metabolic acidosis is associated with decreased plasma level of (A) bicarbonate (B) lactate (C) oxygen (D) urea

Which one of the following is NOT used as a component in subunit vaccines? (A) Capsular polysaccharide (B) Inactivated exotoxin (C) Inactivated virus (D) Viral glycoprotein

Q.20 Competition between two populations in an ecosystem is (A) beneficial (+) to both the populations (B) deleterious (˗) to both the populations (C) beneficial (+) to one population, but deleterious (˗) to the other population (D) beneficial (+) to one population, but no effect (0) on the other population

Q.19 Which of the following is NOT a characteristic morphological feature of apoptotic cells? (A) Disassembly of nuclear envelope (B) DNA fragmentation (C) Increased cell size (D) Membrane blebbing